I'm currently studying meteorology by distance learning, mainly using the JAA ATPL Met CD produced by OAT/Met office. I don't know yet if it will get me through the exam but so far I think that it's top notch. It really covers the most important matters of meteorology in regards to aviation and it explains things so even I seem to understand it.
The only drawback is that I need to click "next" all of the time and that I don't know the approximate time of each lesson. I would also appreciate if it could follow the JAA standard syllabus.
What is the Bristol CD like compared to the one produced by OAT/Met office? Can you take full advantage of the Bristol CD if you buy it second hand or do you need to attend the course in order to mark the questions?